“Warming of the climate system is unequivocal, and since the 1950s, many of the observed changes are unprecedented over decades to millennia. The atmosphere and ocean have warmed, the amounts of snow and ice have diminished, and sea level has risen.”

Adlai Stevenson II, the Democratic candidate for President in 1952 and 1956, used to say, “Most people can’t read the handwriting on the wall until their back is up against it.” We’d better hope he was wrong.